Diving apparatus or the like



H. P. KRAFT & M. O. SCHWEINBRT.

DIVING APPARATUS OR THE LIKE.

'APPLIOATION FILED SEPT.3,1907.

Patented Apr. 25, 1911.

1 M (17W, [UN/7111 INVENTORS 4E2} helmet or other device. ireterahly the parts 3?. KEQFT, OF NEW 3163K, N. L, AND IKEAXIMILIAN CHARLES SCHNEINEBT,

OF WEST I-IOIBOKEN, NEVT JERSEY.

DIVING APPARATUS OR THE LIKE Application filed To all whom it may concem:

Be it known that w HENRY P. :KRAFT, residing in the borough of ihooklyn, county of Kings. city and State or New York, and. Maxizinnmn (CHARLES Somvninnir residing in est HOiDOliGEl, in the count of Hudson and State of New Jersey, both citizens of the United States, have jointly invented certain new and useful Improvements in Diving A r pat-ates the Like, of which the following is aspecifieation.

This invention relates to telephone systems for use in coi'inection with diving apparatus, snhma inc heats, diving hells, or the like, and aims to provide certain improvements therein.

telrphonc apparatus provided by our invention is specially applicable to divers helmets, which are necessarily restricted as to size and weight.

In its preferred form our invention. coinprises a telephone transn'iitter and receiver, mounted. one over the other in a casing which adap ed to he-detachahly connected to the are so constructed that the electrical connections are confined to the removable casing, so that all wiring within the helmet is avoided, and so that both instruments may he removed with the casing, and the. openi 'n the hel- :ed by a cap or other suitable means. aring to the drawingsg wherein we have shown our invention as applied to a divers hel1net,-Fignre ll a. side elevation ot'snch a. helmet provided with our invention. Fig. 2 is an enlarge. view showing the casing in Vertical section. and the telephone instrmnents in side ele Jation. Fig. 3 a dian'ietral section of the telephone transmitter and receiver. 1*" 4 is an elevation of the receiver with it. dis i removed. Fig. 5 is an elevation of llig. Fig. (3 is a sectional;

' v illustrating the siinplei'ne ital cap.

-ing to the drawings, let A. indicate helmet of ordinary construction Y windows a According to our invenon. we provide a casing B which is deillufiiili iy secured to some ')ortion of the helte-ra'blyin the manner illustrated in 1 :2, wherein the cz'ising erovidexl with an internal thread i) which engaged by a screw-ti aded sleeve 0 having a flange hear against the inner side of the helmet and i Specification of Letters Fatent.

September :5, 190?.

.Eitcntcd it pr. 25.

Serial No. 381,041.

the threaded sleeve 0. we prefer to make it in the general form of a cap and to provide it with a series oi per'lbrations f adaptwl.

engage with a. spanner or other wrench. While separate casings limight be pro- 'videcl for the transmitter and rhceiver, we

have found in practice that a single easing may be utilized. for both of these 'instruments. We have also found that it is not necessary to arrai'ige the instruments opposite the month and ear, but that they may be arranged in any convenient part of the helmet. As the body of the air within the hel met is inclosecl, the sound vibrations are readily transmitted to and from the instru inents, even though the latter at. the rear of the helmet. Vi e are thus enahlecl to efi'eet a. considerable sin plilication of the apparatus by mounting both instruments in a singie relatively small casing, and

are also enabled to avoid any -wiring within 0 the helmet. W e have also discovered that the telephone transmitter and receiver may be mounted one over the other without interfering with their usefulness. By this means the device may he made very compact,

and a, sin to flptllllltil' in the helmet snliices for the pa jagc oil the sound waves to and from the transmitter and receiver. in the drawings we have shown the receiver C as mounted over, and in axial alineinent with the transmitter l). Ttreterahly the transmit ter and receiver are connected to a single plate g. sotthat they can be nserted and re moved together. the plate g also serving as a.

means for mounting the combined instrir 5 ments in the casin B, as shown in Fig.2; i

The receiver and transmitter may he of any usual type the transmitter shown being oil? the carbon type. and the receiver being in general of the usual actuating magnets 71. a, dish i, a nd net-hauled 1:11) (Fig. 3). he receiver is spaced apart from the tinnsmi: tor. so as to provide a passageway tor the sound waves. the disk 7 'ilhe receiver and tral'isn'iitter may he oper- Preferably a re- 55 may he placed construction, having one perforated at Z: for the same purpose.

thence through carbon 3, metal ring 4;, binding post 5, receiver magnets 6, post 7,.and

thence through conductor plate 9 and wire 10.

The current is led to the instrument in any suitable way, preferably by insulated cable E, clamped to the side of the helmet bya suitable plate Z. A stuffing-box a is provided to prevent ingress of water into the cap or casing B. In order to insulate the instruments, it is preferable to employ an insulator cap 0, as shown in Fi 2.

If it is desired to use the helmet without telephone connections, the casing B may be removed, and a shallow cap such as F (Fig. 6) secured in its place. In the act of removing the casing, the telephone transmitter and receiver are also removed, together with all electrical connections, so that the telephone connection is entirely separated from the helmet.

It will be observed that our invention has numerous advantages over those now in commen use. One casing is utilized for both the receiver and transmitter, and this casing is of verysmall dimensions on account of the arrangement of the instrument. There is little or no extension of the instruments or other supporting means within the helmet, and no necessity of running wires inside of the latter. The instruments are preferably arranged at a point where they do not interfere with the vision or moven'ients of the operator, and may be easily removed and replaced.

While We have described our invention in connection with a divers helmet, it will be understood that it is equally applicable to other devices of a similar nature, such as submarine boats, diving bells, or the like.

It will also be understood that we do not.

wish to be limited to the details of constructionset forth herein, as wide Variations may be madewithout departing from the invention. 7

We claim as our invention l. A divers helmet having a casing ex-.

tending outwardly from its wall, in combination with a telephone transn'iitter and receiver mounted one ever the other in said casing.

'2. The combination with a divers helmet or the like, of a. casing in conm'iunication with the interior of the helmet for receiving a telephone instrument, and means for detachab'ly securing such casing to such helmet.

3.-The combination with a divers helmet or the like, of a casing in commuuication i A Q with the interior of the helmet for receiving a telephone instrument, and means for detachably securing such casing to the exterior of such helmet 4:. Thecombination with a divers helmet;

orthe like, of a casing for receiving a telephone mstrument, means for detachably securing such casing to such helmet, and

means for. closing the opening in such helmet y when the casing is removed.

5. The combination with a divers helmet or the like, of a casing for receiving a telephone instrument, means for detachably securing such casing to such helmet, and a cap adapted to be engaged by such holding means when the casing is removed.

6. The combination with a divers helmet or the like, of a telephone instrument in connection therewith, a passage leading to the exterior of the device directly opposite said instrument, means for closing such passage, and electrical connections passing through such means to said instrument, such connections extending directly from said instrument tothe exterior.

7. A device of the character described, having a casing detachably secured thereto and communicating with the interior of the helmet, a telephone instrument mounted in said casing, and electrical connections passing through said casing to the exterior of the device. I

8. A device of the character described, having a casing detachably secured thereto, a telephone instrument mounted in. said casing, electrical bonnections passing through said casing to the exterior of the device, and

a stufiing box on said casing through which i said connections pass.

9. A device of the character described, having a casing detachably secured thereto, a telephone receiver and transmitter mounted in said casing, and electrical connections passing through said casing to the exterior of the device, said telephone transmitter and receiver being mounted one over the other and being adapted to be removed with said casing.

'10. A device of the character described, having a casing B, and a screwthreaded sleeve 7' adapted to hold said casing in position.

I 11. The combination with a' divers helmet or the like, of a casin B, a telephone receiver C mounted therein, a telephone transmitter I) mounted behind said receiver, and electrical connectionsfor said receiver passing through said casing, said receiver and transmitter being in the same electrical circuit.

-12. The combination with a divers hclmet, of a telephone receiver mounted at a point which is remote from the position of the ear of the diver.

l3. '.lhe combination with a divers helmet, of a telephone transmitter mounted at a point which is remote from the position of the mouth of the diver.

M. The combination with a divers helmet or the like, of a casing for receiving a telephone instrument and means on the .in-

terior of the helmet for securing said casing to the exterior thereof.

15. The combination With a divers helmet or the like, of a casing for receiving a telephone instrument and means on the interior of the helmet for securing said casing to the I HENRY P. KRAFT. MAXIMILIAN CHARLES SCHWEINER'I.

Witnesses:

EUGENE V. MYERS, THEODORE T. SNELL. 

